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Question
The clear relay case has turned black. Is there a problem?
Answer
Carbon and contact dust generated by the organic gas that results from arc discharge during load switching accumulates on the inside of the case. The discoloration is not a problem.
If using an inductive load, a surge suppressor can be introduced as a countermeasure against discoloration caused by arc discharge.
Other General Purpose Relays FAQ
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Could the Relays become detached from the Sockets if I don't have Hold-down Clips to prevent them from becoming loose?
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What is the life span of the coils when voltage is continuously applied to coils for MY2 AC100V General-purpose Relays?
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Are there restrictions on the direction that the MY General-purpose Relays can be mounted?
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